Is your aircon not cooling enough?

We know how you feel especially the hot and humid weather in Singapore. Things get tricky when the weather becomes very hot. Things can get unbearable indoor if the aircon is not cold.

From our vast experience, the main reason is usually caused by lack of aircon maintenance.

In this article, we explain the common reasons that make your aircon not cold.

  • AC Filter Is Dirty
  • Faulty Compressor
  • Aircon Coolant Is Leaking
  • Dirty Or Leaky Evaporator Coils
  • Thermostat Is Faulty

Sounds complicated? If you need help, feel free to contact us for FREE consultation.

Cool Earth is the fastest leading aircon servicing company, backed by our professionals with more than 18 years of experience in servicing air conditioners for residential and commercial clients all around Singapore.

Our aircon is cooling great again! Shout out to the Cool Earth team who serviced us last week.
Tan SC
Tan SC
11:08 11 Feb 19
Reliable team of aircon specialists. I also like to commend their support staff for helping us out when we encountered a problem with our booking
Wong wah yann
Wong wah yann
02:22 12 Feb 19
Ah Ming surveyed our home, did the installation, and tested the unit in just a couple of hours. It was quick and it was affordable. I was so happy!
Nakul Sarna
Nakul Sarna
07:21 31 Mar 18
We scheduled an appointment online through the their website. The quote was given, the repair was scheduled, and a solution was implemented. Five stars!read more
Hobart Eichmann
Hobart Eichmann
10:35 18 Apr 18
I'm very thankful for cool earth for the quality service and low rates. They helped me save money by asking them to install my new Aircon instead of the other installation company which gave me a quote that was higher than what I expected for a simple installation job. I really appreciated the way he installed the air-conditioner with no problem and it was running right away. He even walked me through the features and energy saving tips for my AC. If ever me or a friend needs an installation, I'll surely send them to the direction of cool earth. Thanks so much!read more
Linda Moscato
Linda Moscato
08:38 05 Apr 18
The team that serviced the units in our office were kind enough to explain to us how to properly care for the AC units. We really appreciate it, thanks!read more
Wan Hung
Wan Hung
13:27 20 Feb 19
One of easy to find aircon service provider online! They respond fast to your inquiries and even gets the job done faster than expected.
Sheetal Doshi
Sheetal Doshi
12:04 22 Feb 19
Repairs and maintenance go-to air cond company for my family and even the office. Cool Earth is both reliable and affordable.
Kartz 2094
Kartz 2094
05:10 25 Feb 19
We were looking for an emergency service for our aircon,and we are so lucky that cool earth responded to us right away, with the perfect quotation for our more
Tran Co
Tran Co
06:37 26 Feb 19
If you are looking to have your aircond cleaned safely, you can trust this company. Their specialists basically know the ‘science’ behind an AC’s performance and what to do to improve more
Adlene Hanna
Adlene Hanna
16:01 04 Mar 19
Much thanks to Cool Earth Sg Support team for responding to our request short notice. Hoping to have better performing aircons now!
faizah zaki
faizah zaki
11:04 18 Mar 19
Happy with their service! The staff entertained us very well and we were able to get an appointment in no time. Aircon servicing has never been this more
poh kee
poh kee
12:31 04 Apr 19
Profesionnal and skilled in aircon service repair! Saved us some money by restoring the state of our AC.
Choco Yee
Choco Yee
03:04 05 Apr 19
fast and easy transaction online. Days prior our set appointment, we immediately got a confirmation call from one of their guy.
Syaz A
Syaz A
15:36 04 Apr 19
We are so glad with the Cool Earth SG team's work. They were so friendly and explained everything well to us so now we know better how to take care of our aircon more
Febe Low
Febe Low
13:47 16 May 19
Highly recommended for commercial properties who need affordable but high quality work on their aircons.
SM Syahmi
SM Syahmi
08:52 26 Jun 19
Consistent service. Love how punctual the service team are. They did the job neatly too!
mira zuki
mira zuki
10:48 05 Aug 19
Great professionalism, and can handle even the most complicated aircon issues. From cleaning to repair, they are our go to guys
Hasnatul Sabarina Amer
Hasnatul Sabarina Amer
12:44 08 Aug 19

Below are some of the possible reason why.

1. Your AC Filter Is Dirty and Blocking the Air Flow

A dirty air filter makes the AC work overtime with irregular air management being the first thing that goes wrong. A clean and well-maintained filter will allow cool air to flow into the house.

The dust that accumulates around it cause it to slightly heat up and this affects the proper flow of cold air. Also, the dirt means the unit is supplying polluted air.

A quick check of the air filters every month to ensure it is clean and working properly can help correct the problem.

2. Issues With The Faulty Compressor – Not Blowing Cold Air

The compressor is a vital component in any aircon.

Its primary function is to cool air before pumping out into the room. If the compressor has problems, its function is hampered.

Issues related to the AC not providing cold air may stem from the compressor being blocked, and this means the flow of cooled air is not possible. The blockage could be caused by dust, dirt and tiny debris which is a rare thing and should be corrected by a skilled technician.

Dirt or debris may not block the compressor, and it still fails to work as it should.

In most cases, it could be frozen causing the entire air conditioning system not to work properly.

Ideally, the compressor is meant to condense air so that it is cool or cold before pumping it into the room.

It runs and a freezing temperature and can at times freeze over due to various issues that may include being blocked by dirt and debris.

Have the compressor checked, defrosted, and repaired so that is can cool the air.

4. The Aircon Coolant Is Leaking

The compressor pumps a special fluid called a coolant or refrigerant which the AC cannot do without if it is to cool the air.

The principles of how the compressor works inside the AC unity are the same as those of how it works inside a fridge whereby the fluid is pumped and recycled as it runs through evaporator coils to cool the air.

If the refrigerant is leaking, then there will not be an adequate amount in your aircon for the unit to work correctly and generate cold air. Having the coolant refilled and any leaks repairs will solve the problem.

5. Dirty Or Leaky Evaporator Coils Within Your Air Conditioning

The evaporator is a series of coils through which the refrigerant circulates to cool air.

It is a vital component in the AC that is responsible for the cold air you want the unit to produce. It will not work as it should if it is dirty.

At times, it may leak, and this may also affect its efficiency.

Cleaning it and ensuring that it is not leaking the coolant can be all that is required to have the air conditioning system producing cold air.

6. The AC Thermostat Is Faulty

At times, the air conditioning system may run when switched on yet fail to generate cold air.

The necessary components that are tasked with cooling air may be in good working condition, but nothing is happening.

The problem, during such circumstances, could be with the thermostat which could be broken or acting up.

It may not be reading the set temperature readings thus failing to trigger the entire AC system to generate cold air. The remedy for this problem is to change the thermostat.

Additional Issue Of Concern Why Aircon Not Cooling

It is possible that your aircon keeps breaking down, which could be due to one of two things.

Either you are using an old unit with worn out parts or the air conditioning system is not the right size for your home. The aircon will not be able to produce enough cold air for your home if it is too small a unit.

Ensure that you have the right size so that it does not have to work so hard to deliver the preferred room temperature conditions.

For the above information, it is clear that the aircon not generating cold air or working correctly is due to poor maintenance.

It is important to have the air conditioning system serviced at least once a year with minor maintenance checks done after every one or two months.

Need Our Help?

Aircon Repair - Troubleshooting air con not cold
User Rating
5 based on 2 votes
Service Type
Aircon Repair - Troubleshooting air con not cold
Provider Name
Coolearth aircon services,
Find out the most common reason why aircon is not cold. Reach us if you need a professional aircon technician to help you troubleshoot your aircon problem.